Ethinking Gmbh
Senior Java Developer (m/w/d) – Quarkus, GraalVM & API-Integration
BerlinGermany
Senior · full-or-part-time, permanent · Development
POSTED 24 FEB 2022VERIFIED 7H AGO
1718 days opentrue age
€60k–75kposted
▼ −21% vs market median €86k
€60k€115k
- Market p25–p75
- €76k–€115k
3open roles
- Opened · 30d
- +0
- Closed · 30d
- −0
2,867open · Senior Backend
- Opened · 7d
- +1164% of open
- All backend
- 8,402open
TypeScriptJavaScriptReactJavaGraphQLAWSKubernetesDockerLLMs
Your mission
You will
- Further develop the XP-Layer and take new features from idea to production.
- Connect CMS APIs, such as Stibo DX CUE, Livingdocs, CoreMedia, Strapi, or WordPress, via REST, GraphQL, or XML web services.
- Transform heterogeneous data models into our generic JSON format for frontends.
- Use GraalVM for polyglot development with JavaScript/TypeScript, for example for flexible, customer-specific transformations.
- Push forward Native Images with Quarkus and GraalVM so our services start faster and use fewer resources.
- Work directly with our customers and their development teams on integration projects.
- Bring AI and agentic approaches into our products, such as LLM-powered features or interfaces for AI agents.
Your skills
- Several years of experience in backend development with Java
- Solid hands-on experience with Quarkus (required)
- Experience with CMS APIs and integrating external systems via REST, GraphQL, or XML
- Confident handling of data transformation and mapping between different data models
- Experience with containers and Kubernetes, ideally on AWS
- Enjoy working with customers and external development teams
- Good German skills, spoken and written (native level not required), as well as good English
Nice to have
- Experience with GraalVM, especially polyglot with JavaScript/TypeScript
- Experience with Native Images in Quarkus or GraalVM
- Hands-on projects with Stibo DX CUE, Livingdocs, CoreMedia, Strapi, or WordPress
- Initial experience with LLM integrations, AI agents, or agentic development workflows
- Background in the media or publishing industry
Our offer
Our Stack
Java · Quarkus · GraalVM · REST · GraphQL · Kubernetes · AWS (incl. Redshift) · React (orchestration UI)
What we offer
- A gross annual salary of €60,000–75,000, depending on experience
- Full-time, 40 hours per week, with 28 days of vacation
- Permanent employment contract
- A team that works closely together in the Berlin office, with short communication paths and fast decisions
- Products used by millions of people every day
- Real room to shape new topics such as GraalVM, Native Images, and AWS
Work-life balance: Compatibility of family and career (we offer a very flexible working environment and try to make everything possible), Deutschlandticket (public transport pass), modern office in a central location, drinks and snacks